Refractive index measurement using comparative interferometry

Mihaela Bojan; D. Apostol; V. Damian; P. C. Logofatu; F. Garoi; Iuliana Iordache

doi:10.1117/12.741908

8 May 2007 Refractive index measurement using comparative interferometry

Mihaela Bojan, D. Apostol, V. Damian, P. C. Logofatu, F. Garoi, Iuliana Iordache

Proceedings Volume 6635, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies III; 66350Q (2007) https://doi.org/10.1117/12.741908
Event: Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies III, 2006, Bucharest, Romania

Abstract

The refractive index of a material medium is an important optical parameter since it exhibits the optical properties of the material. The adulteration problem is increasing day by day and hence simple, automatic and accurate measurement of the refractive index of materials is of great importance these days. For solid thin films materials Abeles method was reconsidered. Quick, measurements of refractive index using simple techniques and refractometers can help controlling adulteration of liquids of common use to a greater extent. Very simple interferometric set-up using Fizeau fringe patterns compares the fringe pitch as obtained in a cell with two levels: one down level with the unknown refractive index liquids and the upper level with gas air. A CCD matrix and a PC can handle the data and produce the results up to for digits.

Citation Download Citation

Mihaela Bojan, D. Apostol, V. Damian, P. C. Logofatu, F. Garoi, and Iuliana Iordache "Refractive index measurement using comparative interferometry", Proc. SPIE 6635, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies III, 66350Q (8 May 2007); https://doi.org/10.1117/12.741908

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available